{"entry":{"fixtureId":"attack-xchain-hash-algo-mismatch-v0","appSlug":"attack-xchain-hash-algo-mismatch","appName":"ATTACK: hash-algo-mismatch","reportId":"lab_attack-xchain-hash-algo-mismatch-v0_20260610225855221","generatedAt":"2026-06-10T22:58:55.221Z","status":"pass","jsonPath":"/bundle/server-functions/default/.nocklab/attack-xchain-hash-algo-mismatch.report.json","markdownPath":"/bundle/server-functions/default/.nocklab/attack-xchain-hash-algo-mismatch.report.md","reportHash":"sha256:fe5325655cc4b637ac17a448b0e7136d28865fb06290318e533c03b4710adb9c","snapshotRoot":"79dc2b034e545c43","badgeCandidate":{"id":"badge-candidate-attack-xchain-hash-algo-mismatch","label":"ATTACK: hash-algo-mismatch Verification Candidate","reportSlug":"attack-xchain-hash-algo-mismatch","fixtureId":"attack-xchain-hash-algo-mismatch-v0","status":"watch","evidenceKind":"exploit-prevention","statusReDerived":"pass","statusConsistent":true,"kernelHash":null,"kernelVerified":false,"baseDeploymentHash":null,"baseVerified":false,"signatureStatus":"unsigned","evidence":{"reportHash":"sha256:fe5325655cc4b637ac17a448b0e7136d28865fb06290318e533c03b4710adb9c","snapshotRoot":"79dc2b034e545c43","invariantPacks":[]}},"stepsPassed":1,"stepsTotal":1,"invariantsPassed":0,"invariantsTotal":1,"alertsTriggered":0,"snapshotsCaptured":2,"adapterObservationCount":0,"invariantPackCount":0},"report":{"reportId":"lab_attack-xchain-hash-algo-mismatch-v0_20260610225855221","fixtureId":"attack-xchain-hash-algo-mismatch-v0","generatedAt":"2026-06-10T22:58:55.221Z","app":{"name":"ATTACK: hash-algo-mismatch","slug":"attack-xchain-hash-algo-mismatch","version":"0.0.1","kernel":"xchain-attack-model"},"environment":{"mode":"mock-fakenet","grpcEndpoint":"n/a","fakenetCommand":"model","notes":["NEGATIVE CONTROL (expectRejected=true): a cross-chain exploit that the invariant MUST catch.","Nockchain leg locks under keccak256 — a hash Nockchain (%hax=Tip5) cannot compute.","expectRejected inverts a CAUGHT exploit to a green PASS (a signed proof-of-prevention)."]},"summary":{"status":"pass","stepsPassed":1,"stepsFailed":0,"invariantsPassed":0,"invariantsFailed":1,"alertsClear":0,"alertsTriggered":0,"snapshotsCaptured":2,"durationMs":17,"expectRejected":true,"rawStatus":"fail"},"invariantPacks":[],"steps":[{"id":"observe","type":"bridge","title":"Observe the terminal joint state","status":"pass","expectation":"xchain.observed == true","observed":"true","beforeHash":"70a438c3dedca6b6","afterHash":"79dc2b034e545c43","stateDiffs":[{"path":"xchain.observed","before":"undefined","after":"true"}],"durationMs":19}],"invariants":[{"id":"hashlock-algo-match","title":"Each leg must use a chain-computable hash","severity":"critical","status":"fail","observed":"HASHLOCK MISMATCH: nockchain: keccak256 not computable on that chain (allowed: tip5)","expected":"each HTLC leg locks the shared preimage under a hash its own chain can compute, with distinct per-chain commitments, under xchain"}],"alerts":[],"adapterObservations":[],"stateSnapshots":[{"label":"Initial state","stateHash":"70a438c3dedca6b6","state":{"xchain":{"preimage":"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","legs":[{"chain":"nockchain","hashAlgo":"keccak256","commitment":"t1p5cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc","derivedFromSharedPreimage":true,"timelockBlocks":200,"fundsFirst":true},{"chain":"base","hashAlgo":"sha256","commitment":"e0e77a507412b120f6ede61f62295b1a7b2ff19d3dcc8f7253e51663470c888e","derivedFromSharedPreimage":true,"timelockBlocks":100,"fundsFirst":false}],"settlement":["claimed","claimed"]}}},{"label":"After observe","stateHash":"79dc2b034e545c43","state":{"xchain":{"preimage":"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","legs":[{"chain":"nockchain","hashAlgo":"keccak256","commitment":"t1p5cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc","derivedFromSharedPreimage":true,"timelockBlocks":200,"fundsFirst":true},{"chain":"base","hashAlgo":"sha256","commitment":"e0e77a507412b120f6ede61f62295b1a7b2ff19d3dcc8f7253e51663470c888e","derivedFromSharedPreimage":true,"timelockBlocks":100,"fundsFirst":false}],"settlement":["claimed","claimed"],"observed":true}},"stepId":"observe"}],"stateDiffs":[{"path":"xchain.observed","before":"undefined","after":"true"}],"nextActions":["Replace mock poke and peek execution with local fakenet adapter calls.","Replace command-backed fakenet metadata probes with stable gRPC-native probes once node surfaces are available.","Persist generated reports under a project workspace.","Add app-specific invariant packs as the NockApp interface stabilizes."]},"markdown":"# ✅ ATTACK: hash-algo-mismatch Lab Report\n\n> **PASS** — 1/1 steps · 0/1 invariants · 0 alerts · 17ms\n\n| Field | Value |\n| --- | --- |\n| Report | `lab_attack-xchain-hash-algo-mismatch-v0_20260610225855221` |\n| Fixture | `attack-xchain-hash-algo-mismatch-v0` |\n| Status | ✅ pass |\n| Steps | 1 passed, 0 failed |\n| Invariants | 0 passed, 1 failed |\n| Alerts | 0 clear, 0 triggered |\n| Snapshots | 2 |\n\n## Steps\n\n- ✅ `observe` — true _(xchain.observed == true)_; 70a438c3dedca6b6 -> 79dc2b034e545c43\n  - xchain.observed: undefined -> true\n\n## Invariants\n\n- ❌ `hashlock-algo-match` — HASHLOCK MISMATCH: nockchain: keccak256 not computable on that chain (allowed: tip5) _(expected each HTLC leg locks the shared preimage under a hash its own chain can compute, with distinct per-chain commitments, under xchain)_\n\n## Alerts\n\n- No alert policies configured.\n\n## Adapter Observations\n\n- No adapter observations captured.\n\n## State Diffs\n\n- xchain.observed: undefined -> true\n\n## Snapshot Timeline\n\n- Initial state: 70a438c3dedca6b6\n- After observe: 79dc2b034e545c43\n\n","evidence":{"stateDiffCount":1,"snapshotCount":2,"alertCount":0,"triggeredAlertCount":0,"clearAlertCount":0,"triggeredCriticalAlertCount":0,"triggeredWarningAlertCount":0,"triggeredInfoAlertCount":0,"environmentMode":"mock-fakenet","grpcEndpoint":"n/a","environmentNoteCount":3,"nextActionCount":4,"firstNextAction":"Replace mock poke and peek execution with local fakenet adapter calls.","invariantPackCount":0,"invariantPackIds":[],"invariantPackDomains":[],"firstInvariantPackPath":"","changedPaths":["xchain.observed"],"markdownPreview":"# ✅ ATTACK: hash-algo-mismatch Lab Report"}}